Cite
APA Citation
Capineri, C., Haklay, M., Huang, H., Antoniou, V., Kettunen, J., Ostermann, F. (. O., & Purves, R. (Eds.) (2016). European handbook of crowdsourced geographic information. London : Ubiquity Press. http://access.bl.uk/ark:/81055/vdc_100082856360.0x000001